Purdue University is a long-established research public university, a six-campus state university system with an enrollment of approximately 40,000 students and a main campus located in West Lafayette, Indiana, in the Mid-Eastern United States. The main campus is located in West Lafayette, Indiana, in the Mid-Eastern United States. Purdue University is renowned for its science, engineering, and agriculture, and is especially well known worldwide for its engineering programs. Purdue's College of Engineering is one of the top engineering schools in the world and is traditionally recognized by Americans as one of the top ten engineering schools in the nation.